Note 7 - Long-lived Assets (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Property, Plant and Equipment [Table Text Block]

	As of December 31,
	2021			2020			Life (in years)
Land	$	1,423		$	1,423
Buildings		20,778			20,778			39
Machinery and equipment		116,725			113,266			2 - 10
Office furniture and equipment		5,480			5,099			3 - 7
Leasehold improvements		8,937			9,305		Shorter of asset life or life of lease
Construction in progress		677			502
		154,020			150,373
Less accumulated depreciation and amortization		(110,365	)		(105,178	)
Total property and equipment	$	43,655		$	45,195

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 31, 2021												December 31, 2020
											Remaining												Remaining
											Weighted												Weighted
						Accumulated			Net		Average							Accumulated			Net		Average
	Cost		Accumulated			Impairment			Book		Amortization				Accumulated			Impairment			Book		Amortization
	Basis		Amortization			Charges			Value		Period		Cost		Amortization			Charges			Value		Period
Intangible assets:
Noncompete agreements	$	170	$	(139	)	$	—		$	31		1.1	$	170	$	(111	)	$	—		$	59		2.1
Customer relationships		15,979		(7,284	)		(7,592	)		1,103		4.0		15,979		(6,979	)		(7,592	)		1,408		4.9
Trade names		9,099		(6,780	)		—			2,319		5.8		9,099		(6,380	)		—			2,719		6.8
Intangible assets	$	25,248	$	(14,203	)	$	(7,592	)	$	3,453		5.2	$	25,248	$	(13,470	)	$	(7,592	)	$	4,186		6.1

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2022	$	733
2023		664
2024		661
2025		661
2026		422
2027 and thereafter		312
Total	$	3,453